COB stands for "Chip on board" where the LEDs are a single large chip rather than individual diodes scattered in a pattern. Love the video and way to represent Rockford!
A COB light is still many individual LEDs in a pattern, just grouped tightly and bonded to the same thermal conducting PCB. Think about the diode patterns for full spectrum COBs, RGBWW, BLAIR-GC, RGBACL, etc.. Practically, the function of a COB light is to allow us to tightly pack LED's to effectively form a smaller source for the sake of shadow quality and enabling optical modifiers that become impractical as the source gets bigger, but they're definitely still multiple LEDs.
More importantly, a COB looks like one continuous source, whereas SMD's (i.e. Nanlite's FS series) creates discreet patterns, especially on multi color chips.
I just realized I accidentally edited out the part where I said COB stands for "Chip On Board" - so the intro part makes no sense 😆 In context I said, I don't know why the settle on calling it Chip On Board
@@Dfproductions865foryou thanks for this detailed explanation of the definition of COB lights. To clarify, I know what it stands for and I know what Chip On Board means, but who ultimately decided to call it that? Who knows. Feel like there could be a more logical name for it 😄.
@@AnotherCameraChannel I forgot they announced that! Do you know if it works well with the 1200d? From what I see it’s optimized for the 1200x and 1000c
@ I hear everything down the line before 600d is fine. 600D and 600C cob design isn’t bevelled or something so it’s not compatible. 1200d should be good. If I get to test it again I’ll try
Andrew lock has a video that explains the same allegory. You can’t go wrong with old school Arri hmis. But I do love the compact trade offs of LED and color control.
I think communicting brightness of a light fixture using lux or footcandles would be more useful than using the exposure triangle. A single metric is easier to compare different lights. Further more, you need to take the light meter readings not just at the center of the beam, but also at the outter edge because even though the 1200D is 2/10 brighter at the center of the beam, but what about the overall volume of light?
@@raredreamfootage yes, good points. I simply use f stops day in and day out - so that’s what I think in. I did test the light across the beam in my own tests and maybe I should have added those tests to this as well. It under-performs badly across the beam as well. The point of this episode was more to point to the fact that you really need to understand what these modifiers are optimized for as it has a massive impact on effectiveness
Doing my own testing with the F10 and the 600 series lights, the only two lights it's really optimized for are the 600D and the 600X. For the 600C and the 1200D, you're far better off using the hyper-reflector set. The 600D with the F10 really heros on set.
The F10 fresnel is designed to work on the 600d, not the 1200d. For that light the appropriate lens is the new CF12. The F14 fresnel you mentioned cannot attach to the 1200d as that fresnel is A-mount, not Bowens. For both the 600d and the 1200d, the Spotlight Max should be used, not the Spotlight Mount. It has much bigger optics and will not only align properly but also project a significantly brighter light.
@@mitchgross592thanks Mitch. I’ve had these attachments before any of the three modifiers listed were made. At the time they were listed as compatible although not recommended. Which is what we were trying to demonstrate here. Good to know the CF12 is the appropriate lens for the 1200. However, I’ve been using the 1200 pretty much since it came out and looks like the CF12 is still not readily available. Send me one and we can do an updated video 😁
Its a wider beam on the 1200d. A light is always judged by output vs width of coverage. The fresnel on the 1200d doesnt loose as much output to the cone reflector as a fresnel in the HMI world. A 4k fresnel is approximately a 2.5K par output etc. The reflector with similar beam angle isnt that much brighter. Not enough to stick those silly looking things on the front of the light. as far as projector lenses, nothing touches the 800 joleko so far. I was able to make the 600c with projectors work but its right on the edge of not being bright enough.
@@jfratis9081 Hey, thanks for chiming in. Not 100% clear on what all you’re saying here. Breadth of beam absolutely needs to be considered when reading intensity, in this instance we were comparing the same lens on the two different fixtures and the coverage was not substantially different. It was simply highly inefficient on the 1200 as it was clearly designed for the size and position of the cob in the 600. 4k to 2.5k comparisons I get. And yes, the 800 Joleko is a highly efficient design. It seems to have something to do with the size of the arc that emits the light. Are you saying you’re happy to sacrifice the output on the 1200 when using the fresnel over using the faceted barrels?
hey man, nice video if I send you a list of my lighting and modifier kit would you be able to give me some feedback on it please? .. i just started a video a production company and there are not many people to ask for quality advise.
Busting the light meter out of a holster is a serious move. Love it.
@@GoodRebelCreative feel like a gun slinger 😆
@@dappergaffer The cinema swashbuckler. New channel name??
@@GoodRebelCreative 😆 yes!
COB stands for "Chip on board" where the LEDs are a single large chip rather than individual diodes scattered in a pattern.
Love the video and way to represent Rockford!
A COB light is still many individual LEDs in a pattern, just grouped tightly and bonded to the same thermal conducting PCB. Think about the diode patterns for full spectrum COBs, RGBWW, BLAIR-GC, RGBACL, etc.. Practically, the function of a COB light is to allow us to tightly pack LED's to effectively form a smaller source for the sake of shadow quality and enabling optical modifiers that become impractical as the source gets bigger, but they're definitely still multiple LEDs.
More importantly, a COB looks like one continuous source, whereas SMD's (i.e. Nanlite's FS series) creates discreet patterns, especially on multi color chips.
I just realized I accidentally edited out the part where I said COB stands for "Chip On Board" - so the intro part makes no sense 😆
In context I said, I don't know why the settle on calling it Chip On Board
@@Dfproductions865foryou thanks for this detailed explanation of the definition of COB lights. To clarify, I know what it stands for and I know what Chip On Board means, but who ultimately decided to call it that? Who knows. Feel like there could be a more logical name for it 😄.
I just came across your channel and I really love the professionalism. Just subscribed hope to see more videos in the future!
@@MarkAngeloMazzola thanks man!
Stoked to watch. Been using my fresnel and adding some bigger LEDs shortly. Been trying to snipe bicolor versions.
@@NJRIII really does wonders for the 600!
CF12 is a much needed upgrade 🌟
@@AnotherCameraChannel I forgot they announced that! Do you know if it works well with the 1200d? From what I see it’s optimized for the 1200x and 1000c
@ I hear everything down the line before 600d is fine.
600D and 600C cob design isn’t bevelled or something so it’s not compatible.
1200d should be good.
If I get to test it again I’ll try
Found the post:
"Backwards compatible with:
LS 1200d Pro
LS 600c Pro
LS 600c Pro II"
@ i’ll have to test it out
actually helpful
Great Video , Many Thanks
Andrew lock has a video that explains the same allegory. You can’t go wrong with old school Arri hmis. But I do love the compact trade offs of LED and color control.
I think communicting brightness of a light fixture using lux or footcandles would be more useful than using the exposure triangle. A single metric is easier to compare different lights.
Further more, you need to take the light meter readings not just at the center of the beam, but also at the outter edge because even though the 1200D is 2/10 brighter at the center of the beam, but what about the overall volume of light?
@@raredreamfootage yes, good points. I simply use f stops day in and day out - so that’s what I think in.
I did test the light across the beam in my own tests and maybe I should have added those tests to this as well. It under-performs badly across the beam as well. The point of this episode was more to point to the fact that you really need to understand what these modifiers are optimized for as it has a massive impact on effectiveness
Doing my own testing with the F10 and the 600 series lights, the only two lights it's really optimized for are the 600D and the 600X. For the 600C and the 1200D, you're far better off using the hyper-reflector set. The 600D with the F10 really heros on set.
The F10 fresnel is designed to work on the 600d, not the 1200d. For that light the appropriate lens is the new CF12. The F14 fresnel you mentioned cannot attach to the 1200d as that fresnel is A-mount, not Bowens.
For both the 600d and the 1200d, the Spotlight Max should be used, not the Spotlight Mount. It has much bigger optics and will not only align properly but also project a significantly brighter light.
@@mitchgross592thanks Mitch. I’ve had these attachments before any of the three modifiers listed were made. At the time they were listed as compatible although not recommended. Which is what we were trying to demonstrate here. Good to know the CF12 is the appropriate lens for the 1200. However, I’ve been using the 1200 pretty much since it came out and looks like the CF12 is still not readily available.
Send me one and we can do an updated video 😁
Its a wider beam on the 1200d. A light is always judged by output vs width of coverage. The fresnel on the 1200d doesnt loose as much output to the cone reflector as a fresnel in the HMI world. A 4k fresnel is approximately a 2.5K par output etc. The reflector with similar beam angle isnt that much brighter. Not enough to stick those silly looking things on the front of the light. as far as projector lenses, nothing touches the 800 joleko so far. I was able to make the 600c with projectors work but its right on the edge of not being bright enough.
@@jfratis9081 Hey, thanks for chiming in. Not 100% clear on what all you’re saying here. Breadth of beam absolutely needs to be considered when reading intensity, in this instance we were comparing the same lens on the two different fixtures and the coverage was not substantially different. It was simply highly inefficient on the 1200 as it was clearly designed for the size and position of the cob in the 600.
4k to 2.5k comparisons I get. And yes, the 800 Joleko is a highly efficient design. It seems to have something to do with the size of the arc that emits the light.
Are you saying you’re happy to sacrifice the output on the 1200 when using the fresnel over using the faceted barrels?
How about 1200D using 15"Hyper reflector compare to 600D using F10 Full spot?
@@fokdavid6779 this would be an interesting comparison - the 1200 would definitely be brighter
hey man, nice video if I send you a list of my lighting and modifier kit would you be able to give me some feedback on it please? .. i just started a video a production company and there are not many people to ask for quality advise.
@@xavierstapleton9780 sure, but me up on insta
Both are quintessential light shaping equipment for any serious Gaffer.
Did you realize how inefficient the F10 is on the 1200?